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2021 Nov 1z0-808 brain dumps

Q131. Given: 

What is the result? 

A. True false 

B. True null 

C. Compilation fails 

D. A NullPointerException is thrown at runtime 

Answer:


Q132. boolean log3 = ( 5.0 != 6.0) && ( 4 != 5); 

boolean log4 = (4 != 4) || (4 == 4); 

System.out.println("log3:"+ log3 + nlog4" + log4); 

What is the result? 

A. log3:false log4:true 

B. log3:true log4:true 

C. log3:true log4:false 

D. log3:false log4:false 

Answer:


Q133. You are developing a banking module. You have developed a class named ccMask that has a maskcc method. 

Given the code fragment:

You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits). 

Which two code fragments should you use at line n1, independently, to achieve this requirement? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: B,C 


Q134. Given: 

And given the code fragment: 

What is the result? 

A. 4W 100 Auto 4W 150 Manual 

B. Null 0 Auto 4W 150 Manual 

C. Compilation fails only at line n1 

D. Compilation fails only at line n2 

E. Compilation fails at both line n1 and line n2 

Answer:

Explanation: 

On line n1 implicit call to parameterized constructor is missing and n2 this() must be the first line. 


Q135. Given the code fragment: 

What is the result? 

A. Jesse 25 Walter 52 

B. Compilation fails only at line n1 

C. Compilation fails only at line n2 

D. Compilation fails at both line n1 and line n2 

Answer:


Replace 1z0-808 actual test:

Q136. Given: 

What is the result? 

A. 200.0 : 100.0 

B. 400.0 : 200.0 

C. 400.0 : 100.0 

D. Compilation fails. 

Answer:


Q137. Given the code fragment: 

Assume that the system date is June 20, 2014. What is the result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q138. What is the proper way to defined a method that take two int values and returns their sum as an int value? 

A. int sum(int first, int second) { first + second; } 

B. int sum(int first, second) { return first + second; } 

C. sum(int first, int second) { return first + second; } 

D. int sum(int first, int second) { return first + second; } 

E. void sum (int first, int second) { return first + second; } 

Answer:


Q139. public class ForTest { 

public static void main(String[] args) { 

int[] arrar = {1,2,3}; 

for ( foo ) { 

Which three are valid replacements for foo so that the program will compiled and run? 

A. int i: array 

B. int i = 0; i < 1; i++ 

C. ;; 

D. ; i < 1; i++ 

E. ; i < 1; 

Answer: A,B,C 


Q140. Given the code fragment: 

StringBuilder sb = new StringBuilder ( ) ; 

Sb.append (“world”); 

Which code fragment prints Hello World? 

A. sb.insert(0,"Hello "); 

System.out.println(sb); 

B. sb.append(0,"Hello "); 

System.out.println(sb); 

C. sb.add(0,"Hello "); 

System.out.println(sb); 

D. sb.set(0,"Hello "); 

System.out.println(sb);D 

Answer:

Explanation: The java.lang.StringBuilder.insert(int offset, char c) method inserts the string representation of the char argument into this sequence. The second argument is inserted into the contents of this sequence at the position indicated by offset. The length of this sequence increases by one.The offset argument must be greater than or equal to 0, and less than or equal to the length of this sequence. 

Reference: Java.lang.StringBuilder.insert() Method